I made the circuit above because of how much I have enjoyed racing on it on iRacing - its a difficult and fun track that comes for free with your subscription and couldn't find a 3d model for it anywhere
below is an explanation from iRacing about Navarra:
Navarra boasts three configurations: the primary 15-turn Speed Circuit that runs for 2.44 miles, and two shorter ones (the 1.66-mile Medium and 0.82-mile Short layouts) comprised of smaller segments of the track. Its long frontstretch features a gentle right-hand first corner before funneling drivers into sharper Turns 2 and 3. Many of Navarra’s corners are sharply angled, with Turns 5, 7, and 10 of the primary layout the most sweeping of the group.
The author marked this model as their own original creation.